Experimental study of mixed convection heat transfer in vertical helically coiled tube heat exchangers

Numerical analysis of laminar heat transfer performance of in-plane spiral ducts with various cross-sections at fixed cross-section area

“…Another experimental study was also conducted by Ghorbani et al [3] who investigated mixed convection heat transfer in a coil-in-shell heat exchanger for various Reynolds numbers, various tube-to-coil diameter ratios and different dimensionless coil pitch.…”

“…The fact for their popularity is the presence of secondary flow caused by centrifugal effects which has an impact on the heat and mass transfer. As such, many experimental [2][3][4][5] and numerical studies [6][7][8][9][10][11][12] have been conducted to analyze the heat transfer performance of spiral tubes.…”

Review on Comparative Study between Helical Coil and Straight Tube Heat Exchanger

“…The inner Nusselt numbers were compared to the values existed in open literature. Nasser Ghorbani, Hessam Taherian, Mofid Gorji, Hessam Mirgolbabaei [4], Have done an experimental investigation of the mixed convection heat transfer in a coil-in-shell heat exchanger is reported for various Reynolds and Rayleigh numbers, various tube-to-coil diameter ratios and dimensionless coil pitch. The purpose of this article is to check the influence of the tube diameter, coil pitch, shell-side and tube-side mass flow rate over the performance coefficient and modified effectiveness of vertical helical coiled tube heat exchangers.…”

Numerical Simulation of Heat Transfer and Determination of Thermal and Hydraulic Characteristics in a Coiled Test Bench Heat Exchanger

“…Авторы публикации [6] провели расчетно-экспериментальное исследо-вание спирального ТА, сравнив результаты численного моделирования с полученными экспериментальными данными, что позволило определить коэффициент теплоотдачи в межтрубном пространстве (МТП). Большой объем расчетно-экспериментальных работ направлен на изучение влияния различных факторов -геометрических конфигураций [7][8][9][10][11][12], свойств рабочих тел [13,14] и особенностей математических моделей [15,16] -на тепловые и гидравлические характеристики. Результаты оптимизации конструкции змеевикового ТА на основе современных численных методов пред-ставлены в статье [17].…”